Cloyes Quick Button Timing Cover User Manual
Installation Instructions
Cloyes Quick Button
BEFORE YOU BEGIN: READ ALL OF THESE INSTRUCTIONS FIRST !!!
Note: The installation procedures which follow assume that the engine has been
disassembled and cleaned as it would be for a normal timing cover change.
YOU WILL NEED:
TOOLS:
5/32" Hex Bit Socket or Hex Wrench
3/16" Hex Bit Socket or Hex Wrench
Inch-Pound Torque Wrench
5/16" Flat Blade Screwdriver
SUPPLIES:
(10) 1/4-20 x 1/2 Socket Head Cap Screws
Front Main Oil Seal
1. Clean everything! Make sure that the engine mounting surfaces and timing cover
components are as clean as possible. Oil leaks may result unless all surfaces are
clean.
2. Prepare the Engine. Loosen the oil pan bolts enough so that the new timing cover
can be installed without damaging the gasket. Push the camshaft sprocket firmly
against the engine block to remove any endplay.
3. Install the Oil Seal. Carefully tap the oil seal (not supplied) into the timing cover
from the front side. Tap the seal in place until it is flush with the timing cover. Be
sure to keep the seal straight in the cover.
4. Install the Timing Cover. Mount the Timing Cover over the aligning pins on the
engine block. Use a small amount of gasket sealer if desired. Install the ten (10)
mounting screws (not supplied). Torque these screws to 160 in-lb (13 ft-lb) using
your 3/16" Hex Wrench.
5. Install the Adapter Plate and Quick ButtonTM Cam Button. Remove the locking
screw from the center of the adapter plate and turn the Quick ButtonTM cam button
TM
Timing Cover
© Copyright 2007, Cloyes Gear & Products, Inc. All rights reserved. 1
counter-clockwise until it is bottomed-out against the adapter plate. Carefully install
the O-Ring (supplied) in the groove on the back side of the adapter plate. Install the
adapter plate into the access hole in the timing cover with the recessed area of the
adapter plate should be towards the top of the engine for proper water pump
clearance. Insert the four Button Head Cap Screws to hold the adapter plate in
place. Tighten the screws alternately in a criss-cross pattern until the adapter plate
is fully seated in the cover. Tighten the screws snugly using the 5/32" Hex Wrench
(about 30 in-lbs). Remember that the screws are going into aluminum, so please
do not over-tighten them.
6. Adjust the Camshaft Endplay. Using your screwdriver, turn the Quick ButtonTM
cam thrust button clockwise until it bottoms against the nose of the camshaft. Now,
install the locking screw and tighten, using the 5/32" Hex Wrench, to 120 in-lb (10 ftlb).
The camshaft endplay is now set to “Zero” lash. Due to the higher thermal
expansion rate of the aluminum timing cover compared to the steel cam button
assembly, there will be a small amount of endplay with the engine warmed up.
WARNING! This timing cover has been designed to fit behind the Chevrolet short water
pump. However, some aftermarket racing pumps may not provide adequate
clearance. If the water pump does not provide clearance, the Quick ButtonTM cam
thrust button may be overloaded. Check for clearance using feeler gauges or
paper. It may be necessary to modify the cover, water pump, or both.
WARNING! This timing cover has been designed to accommodate up to a 7-1/2" vibration
damper. Some larger dampers, such as the Chevrolet 8" replacement, may
interfere with the Adapter Plate screw heads.
© Copyright 2007, Cloyes Gear & Products, Inc. All rights reserved. 2
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